Quest:Logs, Journals and Diaries, Oh My.
Where: Barren Coast
Given by: Farwhendle Higgenspout
Tell him: "do a few things"
Collect: 1 Diary of a Mutiny, 1 Journal of a Blacksail(s) and 1 Waterlogged Logbook.
I assume the next step are the turn ins, but have not yet gone further than looting the logbook, then realising it must be for a quest.
By the way, the other quest Farwhendle gives is great for soloing, all you need to do is be invisible, unless you are amiable to the animals.
BV